Desarrollo de una ingeniería conceptual para el proceso de pirolisis catalítica de residuos plásticos de polipropeno y poliestireno.

Abstract

The objective of this research work was development a conceptual engineering for the catalytic pyrolysis process of plastic waste polypropylene and polystyrene, that in the latest years has increased the demand of plastics and after its useful life those are discarded been an environmental problem due to the inadequate final of these polymers. A bibliographic and comparative study about the catalytic pyrolysis process technologies was carried out, from the independent variables some comparative matrices were created such as: temperature reaction, retention time of the raw material in the reactor, type of reactor used, type of catalyst, analyzing the optimal conditions and the efficiency of the products obtained. The process developed by Lin Y.- H., and Yang M.-H (2006) was analyzed, where spent catalysts of crude refining processes are used, in a FCC fluidized litter reactor presents the best yields and some greater operational facilities, this reactor has several advantages in comparison to other ones, higher contact polymer catalyst that provide more desired final products, but although large quantities of catalyst are needed, the catalyst is reused due to it represents a waste in oil industries companies, which represents a greater profitability in the use of a waste product and finally the catalyst can be recovered and reused thus avoiding an unnecessary expenditure of catalyst.